Got a 92 hatch with a ls swap nothing but 2 seats no carpet and a crazy bad ghetto wiring job. i am looking for advice on how to build the engine and clean up/gut the interior.

 

Make sure the LS is in good condition and check leaks, do a compression test, etc. If it's in good condition,boost it for some good power without a high pricetag (make sure you do a lot of research beforehand if you're new to the forced induction world). With the interior wiring, I'm not so sure.. me and electrical work don't go so well together

 

For the wiring, find a donor car and gut the interior and swap it to yours. It'll be time consuming but worth it in the end, plus it will be done right.

mattyz pretty much covered the mechanical aspect of it all.